Chapter 11 - Scene Size-Up

What are the steps taken when approaching the scene of an emergency call?

scene sizeup

What are the six steps of a scene size-up?

scene safety, Standard Precautions, noting mechanism of injury or nature of illness, determining number of patients, deciding additional resources (if needed)

Who is the responder responsible for the overall coordination of activities at the scene?

Incident Commander

What is the area around the wreckage of a vehicle collision or other incident within which special safety precautions should be taken?

danger zone

How large is the danger zone when there are no apparent hazards?

50 feet

How large is the danger zone when fuel has been spilled or a vehicle is on fire?

minumum of 100 feet

How large is the danger zone when there are downed power lines?

as large as the severed wires can reach if the pole were to pivot

What is another term for Standard Precautions?

body substance isolation (BSI)

What is a force or forces that may have caused injury (e.g., rapid decelaration, fall on ice)?

mechanism of injury

What type of collision involves a vehicle striking an object?

vehicle collision

What type of collision involves a person's body striking the interior of a vehicle?

body collision

What type of collision involves a person's organs striking the interior surfaces of the body?

organ collision

What type of vehicular collision has a great potential for injury to all parts of the body?

head-on collision

What type of vehicular collision is a common cause of neck and head injuries?

rear-end collision

What type of collision can be the most serious, because of the potential for multiple impacts?

rollover collisions

What type of collision involves cars that are struck and that then spin, often causing subsequent impacts?

rotational impact collisions

What is an injury caused by an object that passes through the skin or other body tissues?

penetrating trauma

What type of injuries are usually limited to the area that was penetrated?

low-velocity injuries

What type of injuries are usually caused by handguns?

medium-velocity injuries

What type of injuries are usually caused by a high-powered or assault-type rifle?

high-velocity injuries

What is the temporary cavity caused by the pressure wave of a bullet that is absorbed by the tissue?

cavitation

What is injury caused by a blow that does not penetrate the skin or other body tissues?

blunt-force trauma

What is a keen awareness that there may be injuries?

index of suspicion

What is 'what is medically wrong with a patient'?

nature of the illness